A Sentinel-class shuttle docking with an Arquitens-class command cruiser

Several command cruisers also responded to attack by Phoenix Squadron on an Imperial convoy.[17] Later on, during the blockade of Ibaar, at least three of them worked alongside a pair of Gozanti-class cruisers under the command of Imperial Security BureauAgentKallus to preventing Phoenix Squadron from delivering relief supplies to the starving Ibaarans. The Imperial blockade was successful in driving off the first run of Phoenix Squadron, but was broken in the second run when the rebel fleet was joined by the prototype B-wing fighter, which possessed a beam cannon strong enough to pierce the shielding and armored plating of one of the blockades' three Arquitens-classes. The command cruiser's destruction allowed the rebel cell to make their run and drop the relief supplies before jumping into hyperspace once again.[18]

Above the planet Garel, a command cruiser was on patrol in the system until they received word of a theft of a shuttle from Garel City Spaceport and was deployed to investigate. Arriving in orbit above Garel the Imperials found the aforementioned transport docked with the Shadow Caster; opening a channel with the ships, the Imperials demanded them to surrender and prepare for boarding. Unknown to the Imperials, the shuttle was taken by Lothal rebel operative Sabine Wren who specialized in explosives and was working alongside her old friend, the bounty hunter Ketsu Onyo, Sabine devised a plan to escape by overloading the shuttles' hyperdrive while escaping aboard the Shadow Caster. Sabine alerted the Arquitens-class that their ships were damaged and their hyperdrive was in danger of self-destructing; buying the rebels time to plan for an escape on the Shadow Caster. Sabine then planted explosive charges on the shuttles' control panel and re-activated the shuttles' droid pilot, telling him that his ship was going to come under attack by the command cruiser, and suggesting for it to enact emergency protocols to escape destruction. Sabine evacuated aboard the Shadow Caster with Ketsu, Chopper and EG-86 while the GX1 Shuttle was caught in a tractor beam and dragged towards the command cruiser before exploding. The resulting explosion crippled the command cruiser's tractor beam projector, allowing the Shadow Caster to break free and escape into hyperspace.[7]

Two Arquitens-class command cruisers were assigned as an escort detail for the prototype Imperial Interdictor under the command of AdmiralBrom Titus while it was undergoing trial runs in the Del Zennis system. During the trial runs, the Interdictor managed to capture the flagship of the Phoenix rebel cell: the Liberator, along with Ezra Bridger and the cells' commanding officer Jun Sato. The victory was short-lived however, as the rebels managed to escape capture and sabotage the Interdictor's gravity wells before escaping back aboard the Liberator. Brom Titus, in a last ditch effort, activated the ship's gravity well to pull the rebels flagship back; but due to Chopper's sabotage to the gravity well generators, the command cruisers were also dragged in towards the Interdictor, crashing into the ship and allowing the Liberator to jump to hyperspace before the Interdictor itself collapsed in on itself and imploded. Agent Kallus arrived shortly afterwards to find Brom Titus in an escape pod, and proceeded to chastise the admiral for not heeding his advice earlier regarding Ezra.[19]

Following the revelation of the rebel forces being stationed on Garel, the entirety of the Imperial fleet stationed over Lothal departed,[20] leaving behind a minimal garrison, including at least one command cruiser under the command of Lieutenant Yogar Lyste to oversee the planet in case of another insurgency. Lystes' Imperial cruiser later encountered Princess Leia Organa as she flew in with relief supplies for Lothal on her Hammerhead corvettes, which she intended to deliver to Phoenix Squadron; after checking her codes, the Princess was allowed to land on Lothal.[21]

Imperal jumptroopers inside an Arquitens-class command cruiser

Later, Agent Kallus received word of the Spectres' activity on the planet Nixus and departed with Admiral Kassius Konstantine aboard Kallus' personal command cruiser to intercept the rebels, only arriving into the system mere moments before the Ghost jumped into hyperspace past them. Using the hidden tracker built into Hondo Onaka's communicator he gave to Ezra, Agent Kallus pursued after the Ghost through hyperspace until reaching Wild Space, where he re-encountered the Ghost heading towards an imploded star cluster. Kallus hailed the Ghost offering a chance for the rebels to turn themselves in or be pulled in by the star cluster, only for the Ghost to fly ahead towards the cluster. Kallus ordered the launch of a pair of TIE fighters to try and slow the Ghost down long enough to get them in range of a tractor beam. Due to the Ghost being placed under the influence of Garazeb Orrelios's bo-rifle, however, the ship remained intact while the TIE fighters were both torn to pieces. Seeing the freighter's success in navigating the cluster prompted Kallus to begin a bombardment with the command cruisers' quad laser turrets, only to have the blasts get pulled into the gravity wells of the stars ahead of them. Kallus then ordered the command cruiser to pull back when he began to see dorsal sections of the hull get torn off and pulled into the stars.[6]

Soon after the Rebel defeat on Atollon, the Rebel Alliance launched a mission to Jalindi to hijack the outpost there in order to spy on Imperial fleet movements in 1 BBY. This attempt was thwarted by the Arquitens-class cruiser, Marauder, commanded by Brom Titus. After a skirmish, the Partisans arrived and destroyed the outpost, resulting in a massive explosion that also claimed the Maruader.[26]

Following the Battle of Endor in 4 ABY, Arquitens-class cruisers were already an uncommon sight, largely due to an assault on a shipyard in the same year that caused the shortage of available cruisers. One cruiser was present on the Imperial utopia of Vardos during a skirmish there soon after the Imperial defeat on Endor, and another participated and was destroyed in a skirmish on Takodana in 5 ABY.[27]